My DJI arrived today. I was wondering about charging the wi/fi extender. I never received a wall socket for the usb cable. Since battery charging is a Big deal with this thing - does it matter what rate I charge the wi/fi extender. I have a USB 16 amp lithium battery bank that can output up to 2.5 amps!!! - I have always wondered about the 2.5amp output. Do the devices I hook up to it only draw at the recommended amp or could I be damaging certain devices only meant to be drawing at say 500millamps? ________________________________________________ Sorry I am not up with all this - I guess I am wondering if I should charge of my desktop PC - or will it be ok to charge off said lithium battery bank. Thanks in advance - I best get back to watching the tutorials. Hope you don't mind I will have more questions as they follow - if I can't find them already (and understand from another perspective) on that note ... I require responses to my own questions, not others ... if an issue - n/p - I'll ring and speak with someone else. Cheers. Dave.